qGraphicsPixmapItem & QObject

[dkoryagin]

Hello!

Can u give me advice?
I have custom class, whics inherits from qGraphicsPixmapItem.

class mapObject : public QGraphicsPixmapItem

class mapObject : public QGraphicsPixmapItem

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Now i want to add some signals to it.
What is the best way to do it? Inherit from OQbject ? From QGraphicsObject?

[Lykurg]

Best is:

class mapObject : public QObject, public QGraphicsPixmapItem
{
  Q_OBJECT
};

class mapObject : public QObject, public QGraphicsPixmapItem
{
  Q_OBJECT
};

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[dkoryagin]

in header:

class mapObject : public QObject, public QGraphicsPixmapItem
{
    Q_OBJECT
public:
    mapObject(QString name, QGraphicsScene *scene, QMenu * contextMenu = 0);
    ~mapObject();
};

class mapObject : public QObject, public QGraphicsPixmapItem
{
    Q_OBJECT
public:
    mapObject(QString name, QGraphicsScene *scene, QMenu * contextMenu = 0);
    ~mapObject();
};

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constructor:

mapObject::mapObject(QString name, QGraphicsScene *scene, QMenu * contextMenu) :  QObject(0), QGraphicsPixmapItem(0, scene)
{
    .....
}

mapObject::mapObject(QString name, QGraphicsScene *scene, QMenu * contextMenu) :  QObject(0), QGraphicsPixmapItem(0, scene)
{
    .....
}

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After compile:

D:\WORK\DAssistant/mapObject.cpp:3: undefined reference to `vtable for mapObject'
D:/WORK/DAssistant/mapObject.cpp:50: more undefined references to `vtable for mapObject' follow
:-1: error: collect2: ld returned 1 exit status

D:\WORK\DAssistant/mapObject.cpp:3: undefined reference to `vtable for mapObject'
D:/WORK/DAssistant/mapObject.cpp:50: more undefined references to `vtable for mapObject' follow
:-1: error: collect2: ld returned 1 exit status

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Any ideas?

[dkoryagin]

Thanks a lot...Running QMAKE FTW!

problem solved. =)